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Finding the Fourth Proportional to 620,161.20, 928,929.60 and 620,161.20

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Solution

The fourth proportional to 620,161.20, 928,929.60 and 620,161.20 is: 928,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,161.20 : 928,929.60 = 620,161.20 : x
  2. Step 2: Convert to fraction form
    620,161.20/928,929.60 = 620,161.20/x
  3. Step 3: Cross multiply
    620,161.20x = 928,929.60 × 620,161.20
  4. Step 4: Simplify right side
    620,161.20x = 576,086,095,451.52
  5. Step 5: Solve for x
    x = 576,086,095,451.52/620,161.20
  6. Step 6: Final answer
    x = 928,929.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.